"now its to the point of when you push the 'on' button it turns on then off as soons as you push the button."
Have you checked that the CPU HEATSINK is still on the CPU?
My dad picked up this pc from a guy trying to get rid of it. It's an older machince, I don't know where to get the specs for it because it will not turn on. For awhile it was running fine, then I had some problems with McAfee messing it up, after uninstalling McAfee and reinstaling it, the pc evenutally would not even turn on.
It started out that the PC would get to the sign in, then shut down, now its to the point of when you push the 'on' button it turns on then off as soons as you push the button.
Again I don't know much about the computer other than its says "AMD" on the inside as well as "Pentium 4".
If anyone has any clue what the probelm might be, or how I might go about getting more info for you that would be great.